dH (400 MHz, DMSO-d6) 8.87 (1H, d, J 7.18, NH), 8.14 (2H, d, J 7.64, HAr), 7.52 (2H, d, J 8.22, HAr), 7.43 (2H, ddd, J 8.22, 7.08, 1.14, HAr), 7.20 (2H, ddd, J 7.85, 6.98, 0.89, HAr), 5.12 (1H, d, J 16.84, NCHaHb), 5.02 (1H, d, J 16.84, NCHaHb), 4.32 (1H, pseudo-quintet, J 7.25, CH*), 3.61 (3H, s, OCH3), 1.34 (3H, d, J 7.28, CH*CH3). dC (100 MHz, DMSO-d6) 172.79 and 167.47 (C=O), 140.61, 125.61, 122.23, 120.09, 118.98, and 109.33 (CAr), 51.88 (OCH3), 47.70 (CH*), 45.22 (NCH2), 17.04 (CH*CH3). HRMS (ESI) m/z: [M+Na]+ calcd for C18H18N2NaO3 333.1210; found 333.1206.